Yes. There are several different makes of Compact Fluorescent Reflector Spot Lamp (CFRSL) available. Some makes of CFRSL have a longer overall length than the equivalent conventional incandescent spot lamps so they don't look right in older types of conventional reflector spot lamp fitting. (They look better in the latest up-to-date fittings.) In Europe Megaman and SwissLight are two examples of the makes available. GE of USA makes them too. Megaman and SwissLight each make a Type R80 CFRSL which is so similar in size to the conventional incandescent R80 spot lamp that they look great in the older type of conventional reflector spot lamp fitting. I use five such Megaman Type R80 CFRSLs for 240 Volts AC in my kitchen here in England. Each lamp takes only 15 Watts power but gives the same light output as a 75 Watts standard R80 incandescent reflector lamp. (Type R80 is a Reflector lamp that is 80 mm maximum diameter, with a Regular size Edison screw.)
No...
A fluorescent bulb
No, the ballast's output is not matched to operate a fluorescent bulb.
The light spectrum from an incandescent (a bulb) is closer to the spectrum of the sun than what comes from a fluorescent.
Yes, you can put a fluorescent light bulb in your floor lamp. You need to see what size bulb the lamp takes, but most sizes can be purchased as florescent bulbs.
No...
EEdmund Germer (90% sure) made the first fluorescent light bulb
A fluorescent bulb
The fluorescent light bulb more efficiently converts electricity to light resulting in less heat produced. But in winter, heat being produced is not exactly a bad thing. Besides, fluorescent light bulbs are more expensive and have heavy metals in them, making them more toxic.
fluorescent light bulbs are usually from 9$-15$.
No, the ballast's output is not matched to operate a fluorescent bulb.
No, a fluorescent bulb does not emit the same amount of heat as a metal halide bulb of the same wattage.
Perhaps you are asking about fluorescent lamp. This is an electrical device that uses a fluorescent bulb to give off light. The bulb is a recent invention designed to give energy savings in the residential area. The fluorescent bulb used to be used exclusively in industrial applications, but the new bulb is small and compact enough to be used in a home lamp.
The brightest compact fluorescent bulb is of over 100 lumens or higher outputs at higher drive currents.
The light spectrum from an incandescent (a bulb) is closer to the spectrum of the sun than what comes from a fluorescent.
I need to buy another fluorescent light bulb at the hardware store
In a fluorescent light bulb there is usually a drop of mercury. That mercury vaporizes as the bulb warms up and it becomes gaseous, enhancing the electron interaction through the bulb, making it brighter.